| DEL Renzio & DEL Renzio (Ramsgate) LLP | | 2016 |
| DEL Renzio & DEL Renzio Ltd | Professional & scientific | 2020 |
| Delicious Fish Limited | Hospitality | 2024 |
| Delta UK Properties Ltd | Real estate | 2014 |
| DEM Building Ltd | Construction | 2014 |
| Denkvast Limited | Professional & scientific | 2026 |
| Dental Care Professionals Ltd | Health & social care | 2014 |
| Design 29 (Kent) Limited | Construction | 1997 |
| Devonia Hall Residents Management Company Limited(The) | Households | 1982 |
| DG Easyride Chauffeurs UK Ltd | Transport & logistics | 2026 |
| DGR Projects Limited | Professional & scientific | 2017 |
| Diagnostic Ultrasound Kent Limited | Health & social care | 2017 |
| Digiiital Limited | Information & communication | 2016 |
| DIL SE Catering Services Limited | Hospitality | 2025 |
| Dimex Options Limited | Wholesale & retail | 2024 |
| Disability Assist for Independent Living Ltd | Other services | 2003 |
| Discovery Planet C.I.C. | Education | 2015 |
| District 5 Land Yachting Ltd | Arts & recreation | 2025 |
| Dive Margate Limited | Hospitality | 2023 |
| Divine Television Foundation Ltd | Information & communication | 2008 |
| Divinegrace Transport Co Limited | Transport & logistics | 2024 |
| DJB Signalling Limited | Extraterritorial | 2018 |
| DJH Property Group Ltd | Real estate | 2020 |
| DJL Building & Maintenance Ltd | Construction | 2019 |
| DJW Estates Limited | Real estate | 2021 |
| DLF Installations Limited | Construction | 2014 |
| DLS Mechanical Services Ltd | Construction | 2016 |
| DM Baltic Ltd | Manufacturing | 2024 |
| DMC Media Productions Ltd | Information & communication | 2011 |
| DMG Developments Ltd | Administrative & support | 2017 |
| DMG Group Holdings Ltd | Professional & scientific | 2024 |
| DMG Investments (UK NO.1) Limited | Real estate | 2016 |
| DMG Investments Group Limited | Financial services | 2017 |
| Doctor Driveway Ltd | Construction | 2023 |
| Doggo a Gogo Ltd | Other services | 2025 |
| Domestic Butler Ltd | Other services | 2015 |
| Domneva Heights RTM Company Limited | Households | 2018 |
| Dormans Management Company Limited | Households | 2007 |
| Dormer Court Management Ltd | Households | 2019 |
| DOU DOU Ltd | Hospitality | 2017 |
| Double Double YOU Ltd | Information & communication | 2020 |
| Double M Electrical Limited | Construction | 2022 |
| Doust Independence Limited | Financial services | 2024 |
| Dovemar Limited | Households | 1989 |
| Dover Logistics Ltd | Transport & logistics | 2025 |
| Dover Sea School Limited | Transport & logistics | 2016 |
| DPP F4LIFE CIC | Construction | 2026 |
| DPR Property Thanet Ltd | Construction | 2012 |
| DR HIQ Limited | Other services | 2016 |
| DR Zahida Parveen Ltd | Health & social care | 2019 |
| Dragon Inn Chinese Restaurant Minster Ltd | Hospitality | 2025 |
| Drake Blinds Limited | Wholesale & retail | 2011 |
| Driving Your Success Limited | Administrative & support | 2023 |
| Dropza Logistics Limited | Manufacturing | 2026 |
| DRY Construction Limited | Construction | 1998 |
| DS Mortgage Advisors Limited | Financial services | 2022 |
| Dualpoint Development Group Ltd | Real estate | 2025 |
| Dugdale Plastics Limited | Manufacturing | 1977 |
| Dukes Court Residents (1991) Limited | Households | 1992 |
| Dullas Global Ltd | Health & social care | 2025 |
| Dumpton Park Projects Ltd | Construction | 2023 |
| Duncan and Silver Limited | Hospitality | 2023 |
| DUX Street Ltd | Professional & scientific | 2020 |
| Dymchurch Kiosk Limited | Arts & recreation | 2025 |
| Dynamic Homes Kent Ltd | Construction | 2023 |
| Dynamix Technology Solutions Ltd | Information & communication | 2024 |
| E Platform & Lifts Ltd | Manufacturing | 2026 |
| E-Go Hair Ltd | Wholesale & retail | 2010 |
| EA Medic Limited | Health & social care | 2023 |
| Each END Park Limited | Real estate | 2023 |
| EACH1 TEACH1 Workshops CIC | Education | 2026 |
| Eagle Sheds Limited | Manufacturing | 2010 |
| Earthly Comforts G.P.M Limited | Extraterritorial | 2023 |
| East Kent Brickwork Ltd | Construction | 2017 |
| East Kent Coaching Ltd | Arts & recreation | 2021 |
| East Kent Education Business Partnership Ltd. | Education | 1996 |
| East Kent Hair & Beauty Ltd | Administrative & support | 2018 |
| East Kent Hair Supplies Limited | Administrative & support | 2012 |
| East Kent Mencap | Health & social care | 2019 |
| East Kent Podiatry Service Ltd | Health & social care | 2021 |
| East Kent Sash Windows Ltd | Manufacturing | 2022 |
| East Midlands OIL Collection Ltd | Water & waste | 2024 |
| East-Kent Roofing Ltd | Construction | 2019 |
| Eastgate ACA Ltd | Construction | 2019 |
| Eastwood Homes Limited | Professional & scientific | 1997 |
| Easyfloor Group Ltd | Construction | 2026 |
| Easygo Auto Ltd | Transport & logistics | 2018 |
| Easyscaff Scaffolding Ltd | Construction | 2023 |
| EAT Life Limited | Health & social care | 2019 |
| Ebritain Limited | Extraterritorial | 2007 |
| EC4 Group Limited | Other services | 2022 |
| Eco Craftsmen Ltd | Construction | 2025 |
| Eco Energy Kent Ltd | Construction | 2022 |
| Ecolotec Limited | Manufacturing | 2016 |
| Ecom IS My Life Limited | Wholesale & retail | 2025 |
| Ecom JET Rise Limited | Wholesale & retail | 2024 |
| Edge Enviro Services Limited | Professional & scientific | 1996 |
| Edge Group International Ltd | Professional & scientific | 2024 |
| Edgemont Financial Services Limited | Financial services | 2018 |
| Edgemont Legacy Solutions Limited | Financial services | 2016 |